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Venus: Earth's Blazing-hot and Bizarre Twin

science.howstuffworks.com/46009-venus-explained.htm

The atmosphere is crushing on Venus, and it's so hot lead would melt. But the planet still has a lot in common with Earth. We'll explain.

Which Is More Environmentally Friendly: Paper or Plastic?

science.howstuffworks.com/environmental/green-science/paper-plastic.htm

People wonder if paper or plastic bags are more environmentally friendly. Get the skinny on whether paper or plastic bags are greener.

10 Amazing Green Cities

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Sure, the Emerald City looked green, but you won't need green-tinted glasses to see how environmentally friendly the cities on this list are. What makes a city amazingly green?

How Is Global Warming Affecting the Winter Olympics?

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Global warming will soon prevent Winter Olympic host cities from hosting the games. HowStuffWorks looks at this climate change reality.

How Exhaust Heat Recovery and Recirculation Works

auto.howstuffworks.com/fuel-efficiency/hybrid-technology/exhaust-heat-recovery-recirculation.htm

Exhaust heat recovery and recirculation technologies are made to maximize the efficiency of a vehicle's exhaust. Read about exhaust heat recovery on HowStuffWorks.

Concrete or granite -- which is the better countertop?

home.howstuffworks.com/home-improvement/construction/materials/concrete-or-granite-countertop.htm

Concrete or granite countertops can be one of the biggest decisions in a modern kitchen renovation project. Find out which countertops are ideal.

Biofuels vs. Fossil Fuels

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What's the difference between biofuels and fossil fuels? Keep reading to see how biofuels compare to fossil fuels.

What are the economic drawbacks of using biofuels?

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What are the economic drawbacks of using biofuels? Read about the downsides of using biofuels at HowStuffWorks.

How does safety glass work?

auto.howstuffworks.com/car-driving-safety/safety-regulatory-devices/question508.htm

Why is it that at the scene of a car accident, the broken glass is always in really small pieces, yet when a baseball breaks a house window, there are large jagged pieces?

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